Kolkata: Long-time exposure to pesticides via inhalation may cause moderate to severe blood toxicity and reduction in the total number of bone marrow cells, leading to several degenerative diseases like aplastic anaemia, researchers at the School of Tropical Medicine (STM) here say.The researches arrived at the conclusion from procedures performed on mice."As a whole, exposure to pesticides reduced the total number of bone marrow cells or, in other words, suppressed them," said Sujata Law, assistant professor (Stem Cell Biology) at STM`s Department of Medical Biotechnology.Bone marrow is the soft, flexible tissue found in long bones such as the thigh bone and the hip bone that contain immature cells called stem cells.Stem cells, particularly the haematopoeitic stem cells (HSC) or the blood-forming stem cells can develop into the following types - red blood cells that carry oxygen, white blood cells that fight infection and platelets that help to clot blood.
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